Rotary pumping apparatus



March 16, 1954 DEUBEL ROTARY PUMPNG APPRATUs 2 SheetsSheet 2 Fi1ed octv 16, 1950 by the seoond oub-chonloef olonev soch oyole is oontinuony fepeated. v 4

At the othef side ofthe axial plane thfough the puInp fotof and thfough the oentfa1 fadia1 p1one of the feoipfooable abutn1ent, aS in the lowef poffion of g. the two subohan1bers funotion to compress the fluid delivefed to them by the tvvo intake Subchan1befs and to delivef it to the oI1tlet poft. Thus, eaoh of the fifst ondSecond of such outlet subohafnbefS oon pfeSSes fiuid and delivefs it to the outlet port v7hen its oan1 1obe appfoaches the abutfnent and thus the SubchaInbef is of deofeaSg volunle. T71e lobes of the tvvo caIns forIning suoh first and Seoond outlet subohaInbefS afe offset 180, hov7- evef, so that the delivefy of f771id undef pfessufe is effeoted, in each oyole,'fifst by the first outlet subchamber only, an inStant later by the fifSt and second outlet SubohanbefS, ond a shoft tiIne latef by the Second outlet sub-chambef only.

The iInpfoved abutInent means of the fSt efn bodnent of the pun1p shown in gS. 16, inc1u sive, wi11 be mofe feadily underStood by feferenoe to igs. 36 inolusive, Abutfnent nleans of shown in g. 6 is made up of tWo sepafate abut Inent Inenlbefs 7 and 72, such obutn1ent n1en befs oonffonting each othef of thei1' inner eoges and having, feSpeotively, founded outef edge pof fions 74 and 76 Which are engaged by the faces of oafns 28 and 3o. As stated the inner edges 78 ond 8 of tho abotment meInbers 7 and 72 conffont eooh othef such edges lying olose to gethef, as shoWn in Fig. vvhen the obutnlent nleans is Inonnted in opefative poSition in the Way in the hub. The abutn1ent fnembefS 7 and 72 afe consfantly urged apoft and into contaot outer eogeS thefeof and the face coIns.

ach of abutment membefS 777 and 72 oafrieS on itS outef edge portion, shown at the top in `1 'ig. 6, 3 guide foner respeofively designated 88 and 92, each such foller tting wifhin a slot at the fop edge of its obutInent fflefnbef, sooh s1ot being shown at of on member 77. The roner ofe joufna11ed upon veftica1 pintle pins, thot on abut1nent membef 7o being designated so. The guidefollefS 88 and s2 have dianletefS Which afe the saIne as, of initially very Slightly Sfna11er than, the thickneSs, thot iS, fhe din1ension nof n1al to the paper in 'ig 6, of the abutn1ent IT1eIZ1- befs. Prefefably fonerS 88 and 92 Wi11 initially be in the neighborhood of .002 inch less than the thickneSS of tho abufmenf membefs- The poftionS ofabutfflent fnefnbers 7o ond 72 bove the dash line L-A if1-,ig. 6 fun within the longitudinal Slot of in the housing of the pump. Such S1of iS Shown in FigS. 2 and 9. The provi sion of suoh S1ot in the houSing of the punlp ond the particolar oonoguration of the outer eogeS of the. abutfnent fnefnbefs feSult in an aJlfffost pef fect Seal befween the obutment members ond the houSing fnen1ber, olso feducing the vvea `be `tWeen the abotment n1eInbefs and housingZfo aJ n1if1ifnun1. In ofoef sti11 fufthef to n1inin1izo the -S1of-s2 iff tho hoooing, sooff slot pfofefobly pfovidod With longitudina1 veftico1 Wans whioh afo vefy hafd andthuS vvoaf and abfaSion fe siStant. Suoh Wear plates may take the fofm of the feplaoeable veftica1- ide plates 96, pfef efably nfade of hofdened tool stee1 of the like, such Weaf plates being n1aintained in plooe by means of the bottom spfoadef of wedging men1 bef 98 whioh need not be of hafd stee1.

The bottofn edge of eaoh of the abutment fnem befs 7 ond 72 as Shown in 6, that is, tht portion below the dash line BB, fits Within the inner end of wa 62 in the hub members 4o. och of the hob fneInbers has on each end thefeof a Sfna17e1 oiroulaf oylindfioa1 hub vvhich extends laterany into a centra1 bofe in the conffonting faJoe oain1. ()ne suoh sffla11 hub on hub fnefflbef 4 is Shown at 68 iffg. 3. The bottom of Way 62 iS extended latefa17y to fofm Sha11ow oxiany extending gfooves in suoh hubS on the hub fneff1 ber. AS a fesult of Such oonStfuotion, the abutfnent Ineans Inade up of abutn1ent nlefnbers 7o and 72 is vefy Stably g11ided for feoipfocation in the `Woy in the hub neInber, in the gfooves in the sma11 hubs of the hb membef, and in the 1ongitudina1 S1ot of Sealing gfoove 94 in the housing of the punp. The poftion of eaoh of abutment membefs 7" and 72 betWeen 1ines AA and 1-B iS inlpeffofate; the ifnpeffofate pof tion of nlen1ber 7o is designated 75, the oorresponding part of nlen1ber 72 being denoted 77.

In f'igs. '7 and 8 there is shown o second en1 bodinlent of the invention, Suoh efnbodiment dif fefing ffon1 that pfeviously desofibed in the ohaf actef of the abutfnent fnen1befs Inaking up the reoiprocoble abutment nleanS thefein. The stfuo tufe ShoWn in fgs. 7 and 8 iS paftioularly of value if1 the puInps of the larger Sizes, Whefein the abutn1ent nlefnbefs hove difnensions ade quote to aHow the constfootion of the obutInent nleInber shown in 1 'ig. 8 In g. 7 the arts of the opparatus shown Which ooffespond to those Shown in Fig. 5 are designated by the same fefef enoe chafaotefS vvith an added pfi1fle. n suoh second embodiment, the two abutment members forIning the abutnlent Ineans afe designated 7o and 72. Since such abut!nent nleInberS 7o and 72 afe essentially Sin1ilaf, detailed disouSSion is oonfined to that shown at 7o. Such Inenlber is Inade up of the upper late IneInber loo and the 1ovef plate nlen1bef l2 Spaoed thereffon1, suoh fneIf1befs oaffying joufnalled therebetWeen the fonefS lo8 and llu the pi11tle pinS vhich oaffy Suoh follefS being extended upvvafdly thfough the plate membef m and oaffying on theif up pef endS, fespeotively, the shoft uppeffollefs IM and luB. The bottom plate m2 is slotted of gapped. as shovvn of the botton1 thefeof, Suoh pol'tion caffying within it the botton1 fo11er o vvhioh is joufnalled on the shoft pintle pin 6.

The fo11efS lu4, G, 8, 7, and ll2 afe a1l of the saIne dianletef, Suoh dian1etef pfefefobly being the sanfe of vefy s1ightly lesS fhan the thiokness of the p1teSu2 ond mn. Abutment membefS 7o and 72 have o dimonsion, meaSufed betWeen the dash 1ines Aff ond BB, Whioh iS equal to the rodial diTnenSion of the fespective face calns of the unit. The faoe oanS of the unit engage the inner follerS, of Whioh that of 'member 7n is designated l m. The upper fonefS fo4 and !of engago in fhe longitudina1 Slot fn the puInp hou ing onofhobotton1 o11EI l4 on Weof betvveen the obutfnent fnefnberS ond the ,I*gI,ooveo, fofIned oo a pfo1offation of the v7ary ifI fbo Smonof innof hubo of fhe hoooembof. S 32 fesult of ouoh oonsffuoffon, the abutn1ent n1en1 befs Wi11 bo stobly hold in the WBy 1 the hub n1efnbef, in the g oove in the sn1aller hubs of the hub n1efnbef, and if1 tho longitudina1 abotInent sealing gfoove in the pufffp housing. The pof tion of the abutn1ent fneans above line ff if1 'ig 8 extendS into the gfoove in the pufffp houS ing, vhefeas that beloW 1iffe 1B extends into the innef end of the way in the hub n1ember and the obove disoussed grooveS in the hubS thefeof.

In both diSo1oSed embodimentS of the abut ment membefS employed in the pump, s Shoft period of Weoringin of the apparotus Wi11 fesult 1 the Weafing of the plate elemenfs of the abut fffefft Inen1befS, adjaoont to the guiding fo11s eff1- p1oyed on such fnefnbefs, to or vef,y Slightly sff1od11er dioenSion thon the fo11efs, the fo11efs in tuff1 being Wofn to a diaInetef Which is very slightly 1ess than the vvidth of fhe gfooves of vvays in Whioh they fun, conSequent1y, the fo11ers in the n1ain engage the SuffaoeS post vVhioh fhe abut nlent n1eInberS, s1ide dufing fufther operation of the punlp, and pfevent fufthef vveaf of the iff1 n1ovoble plate poftions of the obutn1ent n1eIn bers. The tolefance between the poftionS of the obutment membefS and the guide ways ond grooves in Whioh they slide nfoy be n1ade so sfffa11 that theTe iS vefy 1ftfle leakoge of ouid thefepost, even undef faifly high oon1fnefcial pfessures fof Whioh the pump mEy be employed.

vvhereaS fof pu poseS of illusffafion have shown and deSoribed two embodin1e11ts of the pufnp of tho pfeSent invenfion, it Wifl be L1ndef stood that tho invention is not liInited to suoh disclosed efnbodin1entS bflt fhat it fnay vary oon Sidefobly ELS to details. The scope of the inven tion iS, thefefofe, to be defined by the olain1S ap pended hefetoD ofain1 aS new fhe fo1fowin= 1. fofary aoparatus of the claSS desofibed, oofnpriSing a caSing pfovided fvith o 1ongifudina1 bo1e thefein and With an inlet and on outlet, a 1ub nlen1be1 xed in the bofe in the oaSing and hving end Wans ond containing oppositely dis posed chon1berS con1tnonioating fespeotively With 5id in1of and Soid outlet, meanS to seal the ends of said casing, 8. dTive shaft mounted if1 sald hub lf)-eInbof, a vay in fhe ootef suffooe of the hub Ine1ber extendng longitudinally thefeof, abut TXenf fneans Slidably n1ounted fI1 the vvoy, said aboffflent nleons sepofafing th oforesaid chan1- beS of the hub n1eInber, the casing hoving aj 1on gitodina1 Slot in the bofe thefein, the a.butment iTfeof1S havif1g itS oufer edge pfofeoting outvvardly of fhe hob nleInbef affd into the sfot in the oas ing io seofing relationship thefevvith, a poir of Soaoed faoe caJfffs fnounted in the bofe in the oas ing fo fotate with the shaft, the oams being Inonnted one on eaoh side of the hob nlefT1bef and eaoh having o soa1ing poftion abufting the e Spective end aJ11 of the hub fne1nbef, the face oon1s engaging oopoSite endS of the abutInent membef to Shiff fhe obutn1ent membeT 1ongitudi nony as the ooIns rotate, ond poftS positioned latopened ond olosed by the face cafnS to fofn1 an opening and closing ump chan1ber as the coIns rotate.

2. Botafy appafotus of the class deScfibed,

Soid in1ef ond soid outlet, Inoons to Seo1 the ends of Said oasing, a dfive shaft fnounted in said hnb fnen1bef, al vvay in the outef SIlffaloe of the hub membef extending 1ongitudioany thefeof, abuf Tnent IneanS s1idably fnounted in the way, Said obutInent fneans having Sea1ing engagefnent vvith the woy in the hub membef and Sepafating the afofeSaid ohaInbefs of the hub nlefnber, the oosing having a longitudinal slot in the bofe therein, 1of1git11dinally extending hafdened wear plateS positioned on the side wa of the slof, the abut n1ent neans having its outer edge pfofeofing out wardly of the hub n1en1bef and i1to the slot -in fhe caSing in sealing fe1ationshi therewith, a poir of Spoced face cofnS fnounted in the bore in the ooSing to rotafe vvith the Shaft, the oaIns being Inounted one on each sicle of the hub n1eIn bef and each having a sealing oortion abutting the fespeotive end WoH of the hnb membef, the faoe c9dIns engaging opposite ends of the abutfnenf nleInbef to Shift the abuffnent nen1bef 1on gitudinally as the caInB Totate ond pofts posi tioned laterolly of the abutn1ent on the hub Inen1 beI' and opened and olosed by the face can1S to forIn on openin and oloSing pufn o11aInbef aS the oamS fotate.

3. Bofary appafatuS of the claSs desofibed, oofnpfisolg a caSing provided wfth aJ 1ongitudin1 bofe therein and Wifh an inlet and aJn o11tlet, a hub TneInber xed in the bore in the casing and hving end WanS ond oontaining oppoSitely diS posed ch1befs coInfnunfcating feSpeotivel With Sad inet and Sadid oI1tlet Ineans to Seal the endS of Said caS1g, dfive shaft n1ounted in soid hub 6 erany of the abut!nent on the hub Inen1be1' and con1 risi a casin rovide with a longitud nal' bofe thefein ond With o folefv and onout1ef, aJ h11)o1en1ber oxeo in the bofo in tho oasing and hoving end WanS and oontaining oppositoly diS- membef, a Way in the outef Sorface of the hob fnenlbef extending longitudinally thereof, abuf fnent nleanS having Sea1ing engagenlent With the Sides and bottoIn of the way in the hub membef slidably mounted thefein, said abutment mem bef sepafating the ofofesoid ohalnberS of the hub Inen1ber, the caSing havin a longitudinal 51ot in the bofe thefein, 1ongitudinally extending hofdened vveaf plates poSitioned on the side WanS of the s1of, aJ plote at the bottom of the slot be tvveen the bottoIn edges of the Wear ploteS and holding the latter in place, the obutment n1eans having its outer edge pfofeoting oufwaTdly of the hob IneInber and into the slof in the caSing in Sealing TelationShip thereWith, 2 paif of Spaced face oarnS nfounted in the bore in the caSing to Totate vvith the Shaft, the oamS being fnounted one on each side of the hob fnen1bef and eaoh having a Sealing poftion abufting the reSpective end wall of the hub fnefnber, the fooe oan1S engoging opposite ends of the abLltn1ent nen1ber to Shiff the abutInent IneInber longitndinally aS the oan1S Totate, and poftS positioned laterally of the abutfnont on the htlb nlenlbef and opened and c1osed by the face cofnS to forfn an opening and c1oSing p11Inp ohaInber as the canls rotate.

0tafy appafatus of the class deScribed, cooprSing a caSing ofovided Wth L 1ongitudi I1a1 bore therein and o/ith of inlef ond an outlet, a hub 1ebef xe in fhe bofe in the casi and having end WonS and oootoining opoosffely d5 poSed ohon1befS coKTlnluniooting feSpectively vifh Said inlet and Said o11tlet, IneanS to sea1 the ends of Said oaSing, aJ dfive shaft mounted in Said hub ff1efflbef, a vvoy in the oI1ter suffaoe of the hub fnen1ber extending fongiudina1y thereof, abutnent xneans Shdably Toounted in the way said abotInent nleanS Sepofoting the ofo1'oSaid ohafn befS of the hub ne1ber, the oaSing having a 1ongitodinal slot in the bofe fhefein. the obut1ent neaos having an iInpeffofate plate poftion. Sajd 13 gitodina1 slot in the bofe therein, eoh of the obut n1ent IneanS having its onter edge pfojeoting outvvardly of the hub and into the slot if1 the casing in sea1ing relationship thefevvith, each of the abutnfent fneans in those poftionS in1fnedi v ate1y outWafdly of the hub f1 1o1fbEf and adjaoent tho bottom of the Way having substantially ix 1- peffofate plote poftionS, ST1ch outef plate poftion having sealing felationship With the outer side vvo11S of the S1ot in the oasing, and aJ plufality of faoe oafnS vyith the oafns in each paif facif1g eaoh othef Inounted to rotate vvith said shaft, one

such oafn being 1ooated at eaoh end ofeach hub of eao11 of the othef of Suoh unitS and poftS po Sitioned laterally of the obutn1ent in each unit and opened and olosed by the face camS of Said unit to forfn an opening and a c1osing pu!np ohafnbef as the caIns fotate 12. Botary apparatus of the claSs deSofibed, oofnpfisi1g aJ caSing pfovided With an inlet and an outlet, a plurality of Spaced aligned hub IneInbers xed therein, eaoh hub Ine1ber having end waHS closing a paif of oppositely diSpoSed 1ongitudina1 ohan1bers of said hub nlen1beTS, ooffesponding ohafnbefS of the hub T1efnberS ooInInunicating fespeotively with said inlet and said outlet, Ineans to sea1 the endS of Sid oaSing, a drive shaft n1ounted in Soid hub 1enberS, a Way extending longitudinally of eooh of the hub nlefnbefS, the vVayS in the respeotive hub n1efn bers being aligned, abutInent Ineans s1idably mounted in the way in each of the hub IneInbers and adapted to extend altefflatively beyond the oorfesponding end Wa11S of the feSpeotive hub InelnbefS, Said abutInent n1eanS Separating the aforesaid ohaInbefs of the fespective hub mem befs, the casing having a longitudina1 S1ot in the bofe thefe1, eaoh of the abutfnent Ineans having itS oI1tef edge pfojecting outvvafdly of the hub and into the s1ot in the casing in Seai1ing fe1a tionship therewith, each of the obutInent Ineans cof11pfiSing a Set of a plufo1ity of abufnlent Inefnbefs olosely positioned edge to edge in the vvay foller snugly tting betveen the side wans of the slot if1 the casing, the plate pofffon adjacent the bofton1 of the way at the centra1 poftion of the hub Inen1ber having Sealing TelationShip With the vay, the botton1 edge of saicl bottoTn plate poT tion having at least one foller thereon, the axis of Said fo11ef extending fadia11y of the f111I), the laSt naIned folleI' Snugly tting within the bof toIn of the ay in the hub, and 3J plufality of faoe caIns vvith the can1S in eaoh paif faoing each v other Inounted to rotate vvith said Shaft, one suoh oaIn .being looated at eaoh end of eaoh hub nenbef, the fespeotive faceS of the CnS being adapted to engage with the feSpective abutInent 1T1ea 1S and having a sea1ing portion abutting the oorfeSponding end va11S of the hub fnen1bef, the faoe can1s of eaoh unit Which oonpriseS a hub, abutInen 1T1eaJns, and a pair of oa1Tls being Sub stantially displaced angularly about the drive Shaft ffonl eaoh of the other of such units.

JosBPH DEoBEL.

1efofenoeS (ited in the f1le of this patent UNITD STATBS PATNTs 

